psy 200 chap 3 midbrain and forebrain

 two main structures of the midbrain:

tectum and the tegmentum 

Tectum: orients an organism in the enviornment- recieves stimulus input from the eyes, ears, and skins and moves the organism in coordinated ways ex- you're in a quiet study room and hear a pen drop- you swivle your body in that direction to see whats going on 

Tegmentum: involved in movement in arousal  

forebrain

The highest level of the brain- both literally and figuratively and controls complex cognitive, emotional, sensory, and motor functions. It is divided into two main sections: the cerebral cortex and the subcortical structures 

Subcortical sturctures

areas of the forebrain housed under the cerebral cortex near the center of the brain. The structures include: 

• Thalamus: relays and filters info from the senses and transmits the info to the cerebral cortex 

• Hypothalamus: regulates body temp, hunger, thirst, and sexual behavior  

• Hippocampus: critical for creating new memories and integrating them into a network of knowledge so that they can be stored indefinitely in other parts of the cerebral cortex  

• Amygdala: plays a central role in many emotional processes, particuraly the formation of emotional memories  

• Basal ganglia: a set of subcortical structures that directs intentional movements 

forebrain: cerebral cortex:

the outermost layer of the brain, visable to the nakesd eye, and divded into two hemispheres. Responsibel for the most complex aspects of perception, emotion, movement, and thought  

Each side (hemisphere) of the brain controls the oppisite side of your body ex- move left hand- controled by right side of brain  

corpus callosum:

in the forebrain. connects large areas of the cerebral cortex on each side of the brain and supports communication of info across the hemispheres (basically allows for the right side of our brain to control and precieve info on the left side of the body and visa vera) 

temporal lobe

in the forebrain. responsible for hearing and language  

Occipital lobe:

in the forebrain. processes visual info, info enters through the eyes and location and oritentation about the visual are made up here  

Parietal lobe:

in the forebrain.processes info about touch  

Frontal lobe:

in the forebrain. specalized areas for movement, abstract thinking, planning, memory, and judgment